I really like this song. Me encanta esta canciónThe title is Poquito a Poco which means Little by Little.I will attempt to translate the first bit.
Andaba perdida de camino pa' la casa
I was walking lost on the way to the house

cavilando en lo que soy y en lo que siento.
Thinking deeply about what I am and what I feel

Poquito a poco entendiendo
Gradually understanding

que no vale la pena andar por andar,
there is no point walking just for walking
(this probably means doing something just for the sake of it)

que es mejor caminar pa' ir creciendo .
It is better to walk in order to keep growing.
(maybe this means that it is better to do things because it has a purpose rather than just doing things for the sake of it)